Martin ekenberg



proper development.

UNITED STATES PATENT OFFIC MARTIN EKENBERG, 0F STOOKHOLM, SWEDEN, ASSIGNOR or oNE nALE To THE FIRMOF LARS MONTEN, or SAME PLACE.

PROCESS OF MAKING PERFUMES.

SPECIFICATION forming part of Letters Patent No. 588,766, dated August 24, 1897'.

Application filed September 20, 1895. Serial No. 563,128. I (No specimens.) Pat nt d in Germany A st 9, 1894, No. 82,297,

and in France April 1, 1895, No. 246,283.

To aZZ whom it may concern:

Be it known that I, MARTIN EKENBERG, a subject of the King of Sweden and Norway, residingin Stockholm, Sweden, have invented certain new and useful Improvements in Perfumes, (for which patents have been granted in France, No. 246,283, dated April 1, 1895, and in Germany, No. 82,297, dated August 9, 1894,) of which the following is a specification.

Alcohol or spirit-of varying degrees of concentration is generally used as a solvent in the preparation of perfumes for rooms, clothin g, &c. This solvent, however, has the property of retaining or binding the odoriferous substances, (generally ethereal oils of high boiling-point or solid substances,) and the fragrance does not appear in the proper composition until the solvent is evaporated;

The higher the percentage of alcohol in the spirits the more time elapses before this If, as is usually the case, the fragrant liquid is directly poured out, wet spots are formed which after the lapse of some time leave only a slightly-diffused concentrated perfume of low intensity. To be sure it is possible to 'a certain degree to increase the intensity of the flavorand its diffusion-for instance, in the case of perfumes for rooms-by the use of atomizers or special bottles provided with air-compressors. Such apparatuses, however, are not very convenient, are expensive, get out of order readily, and require practice for their use. These objections are overcome by my present invention, which is essentially as follows:

WVhen filling in or bottling the fragrant liquid, consisting of a mixture of ethereal oils and fragrant bodies or their solutions in alcohol, I at the same time under more or less pressure introduce into the vessels or bottles for consumption substances which at the ordinary temperature of a room or of the hand are partly or wholly gaseous and which at a temperature below +30 centigrade are capable of exerting a pressure sufficient for forcing the Whole of the liquid out of the containing vessel. However; only such volatile substancescan be used which besides having the properties mentioned shall themselves have no odor or, like the spirits at present used for perfumery, have an odor so little marked as not to essentially change the character of the perfume. As soon as the liquid is discharged from the vessel the substance.

ene, isopentane; and ethers, such as ethylenether, for example, all of which have a boil ing-point below +30centigrade at the pressure of one atmosphere; also carbonic acid,

monoxid of nitrogen, methane, atmospheric air, (to.

, The increase of intensity of the fragrance is particularly noticed when the fragrant liquid is saturated with a body gaseous at the ordinary temperature of the room without, however, materially increasing the pressure-- for instance, with methane. When opening the bottle, gas is in this case slowly generated, carrying the fragrant substances off with it, so that the intensity of the fragrance is maintained constant during the whole period of evaporation.

For perfumery for rooms when an instantaneous diffusion of the perfume through the air is desired Without separation of drops of non-evaporated liquid, the substance added will be a liquid with a boiling-point not over +30",centigrade, and such liquid is added in such quantity that it forms the principal solvent of the fragrant body. Bythis means an instantaneous and complete evaporation is effected. Since the solvents of the fragrant bodies usually at the same time are also solvents of resins, &c., drops falling down from the same are apt to leave spots on polished furniture and other things with which they may comein contact.

The vessels (mostly glass bottles) which are used for keeping the mixture of the fragrant liquids, together with the substances introduced, under pressure are provided with a simple valve, so that, whenever desired, the liquid is easily diffused by operating the same. c

Having thus described my invention, I claim 1. Asa new article of manufacture, a closed vessel containing a mixture of a fragrant substance or its solution and a substance, such as butane, havingaboiling-pointbelow +30 centigrade and practically inodorous, being of such a character as not to noticeably modify the odor of the perfume, whereby when subjected to the temperature of the hand or the air of a living-room, it will be readily vaporized, substantially as set forth.

2. As anew article of manufacture, a closed vessel and a liquid mixture contained there- 

